Strip-forming machines.



J. D. PIERCE.

STRIP FORMING MACHINE.

APPLIC ATION FILED FEB. 25; I915- 2 SHEETS-SHEET I- iiIIi I PatentedOct. 17,1916.

J. D. PIERCE.

STRIP FORMING MACHINE. 7 APPLICATION FILED FEB. 25, 1915.

1,201,757. I Patented 001. 17,1916.

2 SHEETSSHEET 2.

s'rarns PATENT OFFICE. 1

JOHN D. PIERCE, OF CHICAGO, ILLINOIS, ASSIGNOER. TO ALLIVIETAL HEATHERSTRIP COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION'OF ILLINOIS.'

STRIP-FORMING MACHINE.

Specification of Letters Patent.

Patented Oct. 17, 1916.

Application filed February 25, 1915. Serial 'No. 10,567.

To all whom it may concern:

Beit known that I, JOHN D. P1nnon, a citizen of the United States,resident of Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in StripFo-rming Machines;and I do hereby declare that the following'is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,and to the letters of reference marked thereon, which form a part ofthis specification.

This invention relates to improvements in strip-forming machines andconsists of the matters hereinafter described and more particularlypointed out in the appended claims.

The invention as shown herein is intended more especially for theformation of weather strips for windows and doors and includes variousnovel features whereby a machine may be provided for forming strips ofvarious widths, for reeling said strips as they are formed, formeasuring and registering the number of feet in each reel taken from theformingrolls and for inspecting and adjusting any irregularities in thestrips as they are fed to the forming rolls.

The various advantages of my improved machine will-appear more clearlyas I proceed with my specification. V I

In the drawings: Figure l is a View representing a side elevation of amachine'containing my-novel improvements. Fig. 2is a top planview of thesame. Fig. 3 is a View representing on an enlarged scale a verticalsection through Fig. 1 ma plane indicated by the-line 33 of Fig. 1. Fig.'1 is a View representing a partial end elevation of Fig. 3. Fig. 5 is aview representing a section through Fig. 3 in a plane indicated by theline 55 thereof. Fig. 6 is a perspective view-of a part of the formedstrip, in this case a weather strip. Fig. 7 is a diagrammatic sectionalview indicating the application of a'weather strip to a door. 7

Referring now to that embodiment ofmy invention illustrated in thedrawings 10 indicates 'a bench or support for my improved machine. Themachine has a frame 11 which rests upon and is securely attached toupright posts 121-2"12 which restupon and are secured tothe top of thebench 10. The frame 11' consistsof parallel, longitudinally extending,laterally spaced bars 11 '11 arranged edgewise and of a longitudinallyextending board or table 13 restlng upon and secured to the top edges ofsaid bars 11 Theboard or table 13 terminatessho-rt of therear ends ofsaid bars, 11 which are attached together and held in spaced relationbeyond said tableby means or cross bars 14.

In the space between the side bars 1l1l left uncovered by the-table 13,are located a plurality of short, laterally spaced, longitudinallyextending, parallel bars 15, which, together with said side bars,provide bearing supports for the rolls of strips that are to beoperatedupon by the machineto produce the formed strips. In the sidebars 11 andin the short bars 15 are formed upright, associated, open bearingnotches 1617, .there being associated notches 16161717 in each of a-pairof adjacent bars and as illus- .trated in the present instance thenotches 17 are spaced longitudinally a short distance to the rear of thenotches 16.

ISindicates the rolls which are mounted on short stub shafts 19 and thenotches are made of suflicient width to loosely receive said shafts 19.The notches '16 are made of comparatively greater depth than the notches17 for a purpose presently to be described.

The spaces 2122 2324 between the bars (there being four of such spacesin the embodimentof the invention shown herein) are made ofvarious'widths and eachspace is sufiiciently wide to of a certain width.7 I

On the table 13there are fixed a plurality of pegs 25 which are arrangedin longitudinal rows and are spaced laterally tocorrespondwith thedifferent widths of strips and of the several spaces defined by the-bars11 and 15; These pegs act to guidethe strips from the several rolls overthe table.

26 indicates a baradapted to fit between any two ofthe rows ofpegs. 27indicates laterally extending pins fixed at or nearthe time the operatoris enabled by reasonof accommodate a strip the parallel bottom edges263-26 to determine whether or notthe strip is distorted to one side orthe other Transversely arranged guide rolls 13 13 are mounted at the endof the table 13 in brackets 13 to direct the strips from the rolls overthe table and under the bar 26.

The forming rolls are mounted on a standard 23 fixed to the top of thebench 10'. Said forming rolls comprise a plurality of laterally spaceddriven rolls 30.31-3233 '(four as shown in the present embodiment oftheinvention) fixed on a horizontal shaft 34-journaled in said standard anda plurality of associated friction rolls 30-31*3E2 -33 rotativelymounted on a shaft 35 spaced from (in this case above) the shaft 34. A

bearing plate 36 spaced from the bracket 28 and secured to and risingfrom a horizontal extension 23 thereof, provides a bearing for the endsof the shafts 34-35 that are distant from the bearing said shafts havein the bracket 28.

rolls." The shaft 35 on which the friction rolls and spacing disks 37are mounted, is providedrwith eccentric end bearing parts 3838 and oneend of said shaft has a squared head 39 to which a wrench or crank maybe applied to rotate said shaft about its eccentric end bearing parts sothat the space between the'peripheri'es of the forming rolls and theirassociated friction rolls Vmay be varied or adjusted. The shaft 34 islikewise provided with a squared end 34 for the attachment of a cranksothat said shaft may be rotated to impart rotative movement to theforming. rolls and their associated I friction rolls.

The several forming: rolls are made of such diameter that theirperipheral length will equal one or more lineal units so that eachrotation thereof will determine the number of unitsin thejlength ofstrip formed at each rotationlof the formingrolls. As indicated in thedrawings, theforming rolls have a circumferential length equal to twounits, in this case, and on the plate 36 ad- 7 wheel;. 41.

.j'acent the end of the shaft 34 is placed a recording device 40 of anyfamiliar or. usual construction and having a star counting On'the endforming wheel or other rotative part. carriedby the shaft 34 are, fixedone .or more pins 42, depending upon the lineal units carried the?lengthmade integral with the standard 28.

A reel 44 is rotatively mounted below the Y set of forming wheels 30 to33 (see Figs. 1 and Said reel is arranged in such manner that it may beadjusted to bring it into line with any one of the forming wheels 30 to33. As shown, said reel consists of a disk 45 to which are fixed anumber of lat erally extending, annularly arranged pins 46. The saiddisk is fixed on a shaft 47 which has bearing in an elongated sleeve 48The shaft 47 is provided with a number of annular grooves 49 which arespaced apart distances corresponding to the spacing of the formingwheels 33. Near the outer end of the sleeve 48 is pivoted an arm ordetent 50. Said detent engages within an annular slot 60 near the end ofthe bearing sleeve 48 and is adapted to engage in any one of the grooves49 of the shaft 47. Thus the shaft 47, after the detent 50 is removedfrom en gagement withany one of the slots 49, and after said detent isswung upwardly and outwardly as indicated in Fig. 5, may be adjusted tobring any of the other slots in line with the slot in the bearing 48,whereupon the detent may be again swung into engagement with the saidslot to lock the shaft in its new position. The pins 46 are arranged ina circle of a diameter substantially equal to the diameter of theforming rolls. 3 One of the pins fixed to said disk, namely, the pin 46is fixed in a radial slot 45 of the disk and is furnished with athreaded end to receive a thumb nut 46? by means ofwhich it may be fixedin position. After a strip has been wound upon the reel, the thumb nut46 may be loosened and the pin 46 'moved toward the shaft 47. This willslightly lessen the length of the circum: ferential path about the pins46 to such an extent that the roll of strip on the reel may be removed.

To drive the reel a pulley 51 is provided.

7 Said pulley is feathered to the shaft 47 and is connected by means ofa belt 52 to a pul ley 53 fixed on the shaft 34. The pulley 51 isprevented from moving from its position in the plane of the pulley 53,when the shaft 47 is moved longitudinally in one direction or the other,by means of a bolt or pin threaded through a lug 55 extending from thestandard 28 andv engaging Within a groove 56 in the hub of the pulley51. The pulley 51 is madepreferably of smaller diameter than the'pulley53 so that the tendency is to drive the reel 45 at a more; rapidperipheral rate of speed than the forming rolls 30 to 33 are driven,with the result that the strip wound on the reel is always taut and anyslip required is provided. between the belt 52 and the pulley 51. Instarting the machine a sufficient'length of the strip is drawn throughthe forming rolls to reach one of the pins of the reel, whereupon it ishooked upon said pin and thereafter the reel will wind the strip uponitself as the machine is operated.

Themachine shown herein. is particularly designed for forming weatherstrips which consist of parallel narrow marginal parts 7071 and anintermediate connecting web 72 which is inclined to said marginal parts.In the use of such strips, one marginal part,

namely, the part 70, is used as the nailing edge for attachment to thejamb 7 3 of the doorway or window opening, as indicated in Fig. 7 whilethe otherpart constitutes the free edge and is adapted to be engaged bythe edge of the door or window (the door as shown in dotted lines in thedrawings.)

In the case of a machine for forming weather strips such as that shownin the drawings, if the operator finds that the strip is favoring oneside or the other of the bar 26, as it is fed over the table 13, he maycut the strip and may remove the roll 18 from one of the deep notches 16in which it is fed from the top of the roll and reverse and place it inone of the shallower notches 17 wherein it will be fed fro-1n the bottomof theroll or vice versa. In this way the convex side of the strip mayalways be used to form the nailing edge of the strip so that when thestrip is nailed in position on the door vor window, the free edge willbe concave rather than convex and will thus necessarily be stretched inthe process of attaching so that there will be no wave in the surfaceupon which the door or window closes.

I claim as my invention:

1. In a strip forming machine of the kind I described, in combinationwith guiding means, forming rolls, friction rolls adapted to coact withsaid forming rolls, means for driving said forming rolls, said formingrolls having a circumferential length which is equal to or a multiple ofa lineal unit, a counting device associated with said forming rolls anda reel adapted to wind from said forming rolls, said counting device andreel being operated from said formingrolls.

2. In a strip forming machine of the kind described, in combination withguiding means, forming rolls, friction rolls adapted to coact with saidforming rolls, a reel adapted to wind from said forming rolls, means fordriving said forming rolls and reel, and means for adjusting said reelto Copies of this patent may be obtained for associate it with any oneof said forming rolls.

3. In a strip forming machine of the kind described, in combination witha plurality of forming rolls, friction rolls adapted to coact with saidforming rolls, a reel for winding from said forming rolls, means fordriving said forming rolls and reel, a shaft on which said reel ismounted, and means for locking said shaft in several positions to bringsaid reel into line with any one of said forming rolls.

4. In a strip forming machine of the kind described, in combination withforming rolls, friction rolls associated with said forming rolls andadapted to coact therewith, means for positively driving said formingrolls, a shaft belt-driven from said forming rolls, a reel on saidshaft, said shaft being capable of longitudinal movement to bring saidreel in line with any one of said forming rolls, and locking means forlocking said shaft in any one of the several required positions.

5. In a strip forming machine of the kind described, in combination witha table over Which the strips are adapted to be fed, coaxial formingrolls arranged tangential to but below the top of said table, frictionrolls coacting with said forming rolls, means for driving said formingrolls, and a removable gage bar adapted to be associated with any one ofsaid forming rolls extending substantially the length of said table, andmeans for locking said gage bar against longitudinal movement as thestrip is fed between it and the table.

6. In a strip forming machine of the kind described, in combination witha table over which the strips are adapted to be fed, forming rollsarranged tangential to but below the top of said table, friction rollscoacting with said forming rolls, means for driving saidforming rolls,and a gage bar extending substantially the length of said table, meansfor locking said gage bar against longitudinal movement as the strip isfed between it and the table, and two sets of bearing notches forsaidfeed rolls, one set being substantially deeper than the other set, andguide rolls arranged transverse of said table and adapted to feed saidstrips into the plane of the top surface of said table.

In testimony, that I claim the foregoing as my invention I afiix mysignature, in the presence of two witnesses, this 19th day of February,A. D. 1915.

7 JOHN D. PIERCE.

Witnesses:

T. H. ALFREDS, I KARL W. DorL.

